C120B 2016 Toyota RAV4 Code - Ignition Supply Voltage Low
Quick Answer
The Diagnostic Trouble Code (DTC) will be set when the Master Cylinder Pressure Sensor power supply voltage decrease occurs, or a history of voltage decrease exists, and defective Master Cylinder Pressure Sensor output continues for 1 second or more. Common causes include Faulty Master Cylinder Pressure Sensor, Master Cylinder Pressure Sensor harness is open or shorted, Master Cylinder Pressure Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C120B 2016 Toyota RAV4 indicates Ignition Supply Voltage Low.
- Common causes
- Common causes include Faulty Master Cylinder Pressure Sensor, Master Cylinder Pressure Sensor harness is open or shorted, Master Cylinder Pressure Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C120B 2016 Toyota RAV4 Description
What are the Possible Causes of the DTC C120B 2016 Toyota RAV4?
- Faulty Master Cylinder Pressure Sensor
- Master Cylinder Pressure Sensor harness is open or shorted
- Master Cylinder Pressure Sensor circuit poor electrical connection
- Faulty Skid Control ECU (Brake Actuator Assembly)
How to Fix the DTC C120B 2016 Toyota RAV4?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C120B 2016 Toyota RAV4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C120B 2016 Toyota RAV4 code?
Need more information on how to fix the C120B 2016 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about C120B 2016 Toyota RAV4 Code
1. What are the common symptoms of OBDII code C120B (Ignition Supply Voltage Low) in a 2016 Toyota RAV4?
- Common symptoms include difficulty starting the vehicle, engine stalling, and potential loss of power while driving.
2. What are the possible causes of OBDII code C120B in a 2016 Toyota RAV4?
- Possible causes include a weak or failing battery, faulty ignition switch, wiring issues, or a malfunctioning power supply module.
3. How can I diagnose the issue related to OBDII code C120B in my 2016 Toyota RAV4?
- You can start by checking the battery voltage, inspecting the ignition switch and related wiring, and performing a thorough visual inspection for any signs of damage or corrosion.
4. Can a DIY enthusiast fix the Ignition Supply Voltage Low issue associated with code C120B in a 2016 Toyota RAV4?
- While some simple checks like inspecting the battery terminals or fuses can be done by DIY enthusiasts, diagnosing and repairing complex electrical issues may require professional assistance.
5. Is it safe to continue driving my 2016 Toyota RAV4 with OBDII code C120B (Ignition Supply Voltage Low)?
- It is not recommended to continue driving the vehicle with this issue as it can lead to potential safety hazards, such as unexpected stalling or loss of power while on the road.
6. How much does it typically cost to repair OBDII code C120B in a 2016 Toyota RAV4?
- The cost of repairs can vary depending on the root cause of the issue. Simple fixes like replacing a battery or fuse may cost less, while more complex repairs involving module replacements can be more expensive.
7. Can a low battery voltage trigger OBDII code C120B in a 2016 Toyota RAV4?
- Yes, a weak or failing battery can result in low ignition supply voltage, triggering the OBDII code C120B.
8. Are there any preventive measures to avoid encountering OBDII code C120B in my 2016 Toyota RAV4?
- Regularly checking and maintaining the battery, ignition system, and electrical components can help prevent issues that may lead to the occurrence of code C120B.
9. Will resetting the OBDII system clear the Ignition Supply Voltage Low code C120B in a 2016 Toyota RAV4?
- While resetting the system may temporarily clear the code, it is crucial to diagnose and fix the underlying issue causing the code to prevent it from reoccurring.
10. How long does it typically take to repair the Ignition Supply Voltage Low issue associated with OBDII code C120B in a 2016 Toyota RAV4?
- The repair time can vary based on the complexity of the problem. Simple fixes may take a short time, while more intricate issues could require more extensive diagnostics and repairs, leading to a longer repair duration.
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